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US Army Corps of Engineers

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US Army Corps of Engineers

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Towards a Resilient East Coast: the USACE North Atlantic Coast Comprehensive Study and Hurricane Sandy Recovery Program

Roselle Henn, Deputy Director

National Planning Center for Coastal Storm Risk Management U.S. Army Corps of Engineers 24 September 2014 Deltas in Times of Climate Change II Rotterdam, The Netherlands

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Sandy’s Track

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National Hurricane Center 12 Feb 2013

Sandy originated in the Caribbean on 22 October 2012

Severely impacted Jamaica, Cuba, Haiti, Dominican Republic, and Cuba, reaching the USA Atlantic coastline 29 October

In the USA, effects extended from Florida to Maine, and west to Great Lakes

States of New Jersey, New York, and Connecticut greatly impacted; NY-NJ Harbor devastated by catastrophic surge

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Sandy’s Impact in the USA Human

159 lives lost

500,000 mandatory evacuations

20,000 temporary shelter

Extensive community dislocations

Economic

$65B in damages

650,000 houses damaged/destroyed

Infrastructure: Loss off

Telecommunications, transit

Fuel, power

*US Army Corps of Engineers – Partnered projects credited with an estimated $1.9B in damages prevented

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Public Law 113-2 Disaster Relief Appropriations Act 2013

76%

14%

9%

1% 0%

Construction of flood risk reduction projects

Beach repair and restoration

Repair of navigation channels and structures

Investigations and studies

General expenses

{

Total Appropriation $47.9B HUD $15.20B DOT $12.42B DHS $11.47B

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North Atlantic Coast Comprehensive Study “That using up to $20,000,000* of the funds provided herein, the Secretary shall conduct a

comprehensive study to address the flood risks of vulnerable coastal populations in areas that were affected by Hurricane Sandy within the boundaries of the North Atlantic Division of the Corps…” (*$19M after sequestration)

Complete by Jan 2015

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FEMA Sandy Surge Data

Goals Provide a Risk Reduction Framework , consistent with USACE-NOAA Rebuilding Principles

Support Resilient Coastal Communities and robust, sustainable coastal landscape systems, considering future sea level rise and climate change scenarios, to reduce risk to vulnerable population, property, ecosystems, and infrastructure

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NACCS Collaboration

HQUSACE EXEC Command Team

Comprehensive Study

Command Center

(Project Management)

National

Coastal

Working

Group

Academia

NYU Center for

Coastal Preparedness

Monmouth University-

Urban Coast Institute

Rockefeller Foundation

Strategic Collaboration

National Planning Center of Expertise

Coastal Storm Damage Reduction

North Atlantic Division

NGOs

Executive

Leadership

State, Federal

Agencies , Tribal

Officials

& NGO’s JFOs & States’

Recovery Offices

H. Sandy Rebuilding Task Force

HUD, DHS/FEMA, USACE,

NOAA, DOI, USEPA

CERB

Chief’s

EAB

NAD CMDR

Gubernatorial &

Mayoral Offices

Climate

Change/SLR

NOAA, FEMA,

USACE

Federal Partners

for the Northeast

PL Teams

Plan Form – NAP (lead)

Econ – NAN (lead)

Env – SAW (lead) EN Teams

EN – NAN/SAJ/ERDC

SLR – SAJ (lead)

NNBF – ERDC/IWR

National Hurricane

Program

USACE, FEMA

Review by

State and

Federal

Partners

MARCO

NROC

MARACOOS

MAFPO

PANYNJ

Private Sector

International

Collaboration

ATR by

SAD

KEY:

USACE Partners

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NACCS Future Scenarios and Flooding Exposure

Sea level rise* evaluated for the years 2018, 2068, 2100** and 2118

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* USACE Engineer Circular (EC) 1165-2-212 ** Intergovernmental Panel on Climate Change scenario

Socioeconomic Factors and Trends

Ecosystems Adaptive Capacity

Population/Infrastructure Density

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Coastal Storm Risk

Management Framework

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39 Reaches Coastal Physical Properties

(natural or humanly altered)

Coastal Storm Risk Management Framework Planning Reaches

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Forecasted Population and Sea Level Rise

Percent change in county

populations from 2010 to 2070 and

projected 2018, 2068, 2100, 2118

SLR future conditions

National-Scale Housing-Density

Scenarios Consistent with Climate

Change Storylines

(USEPA June 2009)

Assumes moderate rates for

economic development, fertility ,

mortality, and migration

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Coastal Storm Risk Management Framework Flood Exposure and Risk Assessment

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Coastal Storm Risk Management Framework Risk Management Measures

Structural Storm surge barriers

Levees, breakwaters, shoreline stabilization

Natural and Nature-Based Features (e.g., beaches and dunes, living shorelines, wetlands, oyster reefs, SAV restoration)

Non-Structural (e.g., floodproofing,

acquisition and relocation, flood warning, etc.)

Policy/Programmatic (e.g., floodplain management, land use

planning, State/municipal policy, natural resources, surface water management, education, flood insurance programs, etc.)

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Bulkhead

(B1)

Emergent

Herbaceous

Marsh

(GI 1)

Submerged

Breakwater

(Nearshore

Berm/Oyster

Reef/Sill)

(GI 2)

Submerged Aquatic

Vegetation (GI 3)

Coastal Storm Risk Management Framework

Risk Management Measures

Integration of Measures Relative Parametric Costs

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NACCS Findings Shared responsibility of all levels of Government and

partnerships

Rethink approaches to adapting to risk

Areas of highest (and growing) population density and economically critical urban centers are most vulnerable

Resilience and sustainability must consider a combination and blend of measures

Consider stormwater and fluvial aspects of coastal risk management

Interior, low-lying areas highly susceptible to small changes in water level

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NACCS Outcomes

ERDC’s Coastal Storm-Modeling System (ERDC CSTORM-MS)

Application of high-resolution numerical models in a tightly integrated modeling system with user friendly interfaces

Provides for a robust, standardized approach to establishing the risk of coastal communities to future occurrences of storm events

Depth-Damage Functions Assessment of Damages to Structures and Their Contents

Loss of Life Projection

Emergency Costs, Secondary and Tertiary Effects

Conceptual Regional Sediment Budget

Coastal Program Guide (modeled after the Silver Jackets

Interagency Flood Mitigation Program Guide)

US Fish and Wildlife Planning Aid Report

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NACCS Opportunities

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1) Rhode Island Coastline 2) Connecticut Coastline 3) Nassau County Back Bays, NY 4) New York Bay –New Jersey Harbor and Tributaries 5) New Jersey Back Bays 6) Delaware Back Bays 7) City of Baltimore, MD 8) Washington, D.C. 9) City of Norfolk, VA

9 Focus Areas: Locations not having

partnered projects/studies when Sandy occurred

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Quantify the resilience of an integrated coastal system incorporating

Natural and Nature-Based Features

Engineering Projects

Community Values

What are the best practices for assessing, operating and maintaining a resilient coastal system?

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Systems Approach and Resilience

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State

Implementation

of Ongoing & Planned Risk

Reduction

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9 Focus Area Integrated Strategies

USACE-Sponsor Design and Construction

USACE-Sponsor Feasibility Studies and/or Comprehensive Plans; Technical Assistance

Coastal Resilience Integration

NACCS Products: Geospatial Database; Numerical Modeling of Extreme Water Levels; Economic Depth-Damage Functions; Environmental and Cultural Resources Conditions Report; Conceptual Regional Sediment Budget; Vulnerability, Resilience, Natural and Nature-Based Features Assessment and Metric Development

North Atlantic Coast Comprehensive

Study

Integration of Strategic Coastal

Investments

2013 2015 2020 2025

Ongoing USACE Activities

*Vulnerability Assessments, Resilience and Climate Change Adaptation Planning

*Technical Assistance to States and installations; Public-Private Partnership initiatives

*Limited & General Reevaluation Reports

*Continuing Authorities Program and Operation & Maintenance activities

*Flood Control and Coastal Emergency projects

*National Hurricane Program

Regional Partnerships & Collaboration

Housing and Urban Development (HUD)

Northeast Regional Ocean Council (NROC)

Sandy Regional Infrastructure Resilience Coordination (SRIRC)

Mid-Atlantic Regional Association Coastal Ocean Observing System

(MARACOOS)

Northeastern Regional Association of Coastal

Ocean Observing Systems (NERACOOS)

Department of Interior – NFWF Grants

Chesapeake Bay Resilience Co-Lead

Rebuild By Design and more…

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http://www.nad.usace.army.mil/CompStudy.aspx

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